Wrench.



PATENTED AUG. 13, 1907.

D. H. SHIPMAN.

WRENCH.

APPLIOATION FILED MAR, 23, 1907.

Swantoz: Java! 1 Wu 3mm mom q Illl DAVID HARNETT SHIPMAN, OF MEROED,CALIFORNIA.

WRENCH.

Specification of Letters Patent.

Patented Aug. 13, 1907.

Application filed March 23,1907. Serial No. 364,155.

To all whom it may concern:

Be it known that I, DAVID HARNET'I. SHIPMAN, a citizen of the UnitedStates, residing at Merced, in the county of Merced and State ofCalifornia, have invented certain new and useful Improvements inWrenches, of which the following is a specification.

My invention relates to improvements in wrenches of the plier-type,especially designed for turning pipes or other like cylindric bodies, aswell as being adapted for turning nuts and for cutting wire. Its objectsare to promote facility and expedition of action and effectiveness incarrying out the aforesaid purposes, together with simplicity andeconomy of manufacture.

Said invention consists of certain features or instrumentalitiessubstantially as hereinafter fully disclosed and specifically pointedout by the claims.

In the accompanying drawing illustrating the preferred embodiment of myinventionFigures 1 and 2 are opposite side views thereof. Fig. 3 is across-section produced through the jaws. Fig. 4 is a broken side viewthereof, the jaws being spread apart or in open position.

In the disclosure of my invention, I employ two handle-equippedjaw-members 1, 2, the handles being designated as 3, 4, respectively,which jaw-members have their otherwise generally rectangular grippingsurfaces or faces 5, 6 rounded out into concavities for a portion oftheir lengths as at 7, 8 as in adapting the same for more effectivelyengaging a pipe-section or other body of like outline when it may bedesired to turn the same, It is also apparent that the jaw-faces areequally effective for receiving between them a nut, for turning it as inunscrewing it off a bolt or screwing it thereon, as well understood. Onejawmember 2, has its handle 4 integral therewith; and in diagonallyopposite surfaces of the two jaws are longitudinal guide-grooves 9, 10which, however, open out only laterally and not at their ends, or ratherbut par tially at their inner ends, to limit the relative movement ofsaid jaws and prevent thedisengagement of the moving parts guidedthereby, as will more fully be presently disclosed. The other jawmember1, has its handle 3 pivotally connected thereto at its extreme inner endsome distance inward from the outer end of said handle as at 11, whilesaid end of said handle crosses over toward, and stands laterally of theopposite jaw-member 2 for actuating the last-noted as later described.Said handle 3 has, a short distance inward from its jawactuating end, anoblique corner edge 12 beveled off to co-act with an oppositecorrespondingly shaped and beveled off edge 13 of the jawmember 1 toserve as a wire-cutter.

A link 14, toggle-lever like in action, is pivotally connected as at 15,at its inner end to the handle of the jaw-member 2, a short distanceinward from the latter.

Said link is also pivotally connected as at 16, in a suitable manner, tothe handle of the jaw-member 1 near its outer end. Said link and anouter-end extension 17 of the handle 3 of the jaw-member 1, have theirrespective outer ends curved edgewise in opposite directions andprovided at their outer ends with lateral studs or projections 18, 19,respectively, effective for engaging the guide grooves 9, 10 of the twojaw-members for directly actuating the latter as the handles of saidjaw-members are requisitely manipulated. Said lateral studs 18, 19travel in the grooves 9, 10 of the jaw-members along longitudinal lines,while the laterally edgewise curved portions of the lever 3 and of thelink 11 describe arcs in their movement, which have the effect to movesaid jaw-members in relatively parallel lines, for effective grippingaction, as will be readily appreciated.

This device is extremely simple, manufacture and effective in action.

I claim- 1. A wrench comprising having longitudinal grooves inexpensiveof handle-equipped jaw-members in their diagonally opposite sides, onejaw-member being integral with its handle and the other jaw-member beingpivoted to its handle, and a link pivoted at one end to the handleintegral with its jaw-member, a short distance inward from saidjawmember, said link also being pivoted intermediate of its ends to theouter end of the jaw-member pivoted handle, said link and said pivotedjaw-member handle having their outer ends provided with integral studsengaging said grooves.

2. A wrench comprising having longitudinal grooves sides, one jaw-memberbeing the other jaw-member being pivoted to its handle, and =1 linkpivoted at one end to the handle integral with its jaw-member, a shortdistance inward from said jawmember, said link also being pivotedintermediate of its ends to the outer end of the jaw-member pivotedhandle, said link and said pivoted jaw-member handle having their outerends provided with integral studs engaging said grooves, also one ofsaid jaw-members and one handle being adapted to serve as a wire-cutter.

3. A wrench comprising handle-equipped jaw-members having longitudinalgrooves in their diagonally opposite sides, one jaw-member beingintegral with its handle and the other jaw-member being pivoted to itshandle, and a link pivoted at one end to the handle integral with itsjaw-member, a short distance inward from said jawmember, said link alsobeing pivoted intermediate of its ends to the outer end of thejaw-member pivoted handle, said link and said pivoted jaw-member handlehaving their outer ends provided with integral studs engaging saidgrooves, also said link and said jaw-member pivoted handle being curvedat their stud-equipped portions toward each other.

In testimony whereof I afhx my signature, in presence of two witnesses.I

handle-equipped jaw-members in their diagonally opposite integral withits handle and DAVID HARNETT SHIPMAN.

Witnesses:

LOUIS GSTREIN, S. G. Hosun.

